| DQR ID | Subject | Data Streams Affected |
|---|---|---|
| D050725.1 | SGP/SONDE/C1 - Bad RH Data | sgpsondewnpnC1.b1 |
| D060928.3 | SGP/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry | sgpsondewnpnC1.b1 |
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 07/17/2005 | 2347 | 07/18/2005 | 0141 |
| Subject: | SGP/SONDE/C1 - Bad RH Data |
| DataStreams: | sgpsondewnpnC1.b1 |
| Description: | The RH values below 6 km are incorrect. The problem relates to a failure of the GC25 ground check set used before this particular sounding. The failure seems to have affected the sensor calibration with the effect that one of the two sensors was reading artificially high. Because the internal processing software uses the highest of the two sensor readings, the bad sensor value is chosen whenever it is not heated. |
| Measurements: | sgpsondewnpnC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 09/28/2006 | 1728 | 12/31/9999 | 2359 |
| Subject: | SGP/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry |
| DataStreams: | sgpsondewnpnC1.b1 |
| Description: | The output precision of the following variables was increased 20060928 alt changed from 1m to 0.1m dp changed from 0.1degC to 0.01degC pres changed from 0.1 hPa to 0.01 hPa RH changed from 1%RH to 0.01%RH tdry changed from .1degC to 0.01degC Note that the increase in precision does not necessarily imply an increase in accuracy. Users are cautioned to continue to use their best scientific judgement when using these or any other data. |
| Measurements: | sgpsondewnpnC1.b1:
|